Why detailed story prompts beat "write me a story"
Ask an AI for "a thriller about AI in a hospital" and you get the average of every such story it has seen: a generic hero, a vague city, an ending that explains itself. The fix is specificity. A named character with an age, a job and a flaw, a setting with a place and a date, and a conflict phrased as a question the character must answer give the model something to work with instead of defaults.
The builder also fixes the technical choices writers make before the first sentence: point of view, tense, length and the kind of ending. Leaving these open is where AI fiction drifts, for example switching from past to present tense halfway through. The "avoid" field is the most useful one for experienced writers: listing the clichés you do not want (dream endings, "little did she know", a villain monologue) removes them more reliably than any instruction to "be original".
The generated prompt asks the model to show rather than tell, to keep the ending consistent with what was set up, and not to add a moral. Use the result as a draft to rewrite, or as a way to explore plot options quickly before you write the real thing yourself.
Worked example
Say you want a tight thriller short story with a specific, believable main character. These are the inputs:
- What to write
- a short story
- Genre
- thriller
- Premise or idea
- A night-shift nurse realises the hospital's new AI scheduling system is quietly removing patients from the records
- Main character
- Mara, 54, pragmatic, two years from retirement, distrusts anything new
- Setting (place and time)
- a small-town hospital in northern Sweden, winter 2031
- Central conflict or question
- Does she report it and lose her pension, or stay quiet?
- Point of view
- third person limited
- Tense
- past tense
- Length
- about 1,500 words
- Ending
- open ending
- Tone
- Direct and concise
- Themes
- trust, ageing, who is responsible when a machine decides
- Avoid
- clichés about evil AI, dream endings, explaining the moral
The builder turns these inputs into the following prompt. Load it into the form above with the Hospital thriller example chip and change anything you like.
You are a skilled fiction writer and editor with a strong sense of character, pacing and subtext.
## Task
Write a short story in the thriller genre.
## Premise
A night-shift nurse realises the hospital's new AI scheduling system is quietly removing patients from the records
## Main character
Mara, 54, pragmatic, two years from retirement, distrusts anything new
## Setting
a small-town hospital in northern Sweden, winter 2031
## Central conflict
Does she report it and lose her pension, or stay quiet?
## Themes to explore (never state them directly)
trust, ageing, who is responsible when a machine decides
## Requirements
- Point of view: third person limited, past tense.
- Length: about 1,500 words.
- Ending: open ending.
- Tone: Direct and concise.
- Show, do not tell: reveal character through action, dialogue and detail, not explanation.
- Start in the middle of a concrete moment; no weather openings, no waking up, no mirror descriptions.
- Dialogue should sound like real speech: short, with subtext, without characters explaining things they both know.
- Do not add a moral, a summary or a final line that explains the meaning.
- Avoid: clichés about evil AI, dream endings, explaining the moral.
- Avoid clichés and stock phrases ("little did she know", "a chill ran down her spine").
## Output format
The story text only, with a title on the first line. No preface and no notes after the story.This page shows only the prompt. The answer depends on the AI tool you paste it into, so always review the result before you use it.
Tips to improve your results
- Give the character one concrete flaw and one thing they want; the conflict should put those in tension.
- Name the place and year. "A city" produces nothing; "Trieste, August 1954" produces details.
- Ask for one scene first. Full stories from a single prompt tend to rush the ending.
- Use the avoid field for clichés you have seen in AI fiction before.
- Run the same prompt twice and keep the better opening paragraph; openings vary the most.
Frequently asked questions
Can I use this for a novel?
Use it for one chapter or scene at a time and paste a short summary of what happened before into the premise. Whole novels from one prompt lose consistency.
Is the generated story mine?
Copyright rules for AI-generated text differ by country and are still changing. In many places, text generated without substantial human authorship is not protected. If you publish, rewrite it in your own words and check your platform's rules.
Which point of view should I choose?
Third person limited is the safest default: it stays close to one character and reads naturally. First person gives a strong voice but makes it harder to show what the narrator does not know.
Why does the AI still add a moral at the end?
Models are trained to be helpful and tend to summarise. The prompt explicitly forbids it; if it still happens, reply with "Remove the last paragraph" rather than regenerating everything.
Does the generator write the story itself?
No. It builds the prompt in your browser. Paste it into ChatGPT, Claude, Gemini or any other assistant to get the story.